Hi Elizabeth,

Matt and I are still puzzling over this.  It's not clear right now if the issue is related to projecting particles in general in your data or projecting star particles specifically.  Can you do another full box projection for us, but this time with the field dm_density?  That should help us to narrow down the problem.

Britton

On Mon, Jun 13, 2011 at 10:31 AM, Elizabeth Tasker <taskere@mcmaster.ca> wrote:
Hi Matt and Britton,

I've attached the image for the stars over the whole disk; it shows the same issue, with the grids (and also any gas property) showing the region correctly, but the stars only appearing in a small patch.

Matt, your script gives:

Min: [('x', 5.6774955112245706), ('y', 5.7878015648296586), ('z', 15.07668303734844)]
Max: [('x', 26.537083788811703), ('y', 25.802074691296504), ('z', 17.201602159672426)]


Which are the values I expect.

It could be, as Britton suggests, a problem with the box size not being 0-1. Although, that is a particularly random patch it's decided to fill in.

Elizabeth



Matthew Turk wrote:
Hi Elizabeth,

Weird.

This script should help us find out where the stars live.  What's it
give you?  (Replace the loaded dataset with your own.)

http://paste.enzotools.org/show/1696/

Also, it'd be nice to see that image Britton requested.

-Matt

On Fri, Jun 10, 2011 at 2:02 PM, Elizabeth Tasker <taskere@mcmaster.ca> wrote:
 
Oddly, neither of those make any difference.

Elizabeth



Britton Smith wrote:
   
I would also suggest trying some projections instead of slices as well.
 Both of those fields are created using the CIC_deposit interpolation method
with just the star particles.  I could see a field like that being
problematic when doing slices.

Britton

On Fri, Jun 10, 2011 at 4:10 PM, Cameron Hummels
<chummels@astro.columbia.edu <mailto:chummels@astro.columbia.edu>> wrote:

  Try using the field StarMassMsun instead of star_density and see
  what it yields.  I've had better luck with that field.

  Cameron


  On 6/10/11 4:00 PM, Elizabeth Tasker wrote:
     
  Hi,

  Slices of the star_density field are only showing a tiny patch of
  the area in the corner, rather than the whole region. My script
  looks like:

  pc = PlotCollection(pf, center=[17.,11.5, 16])
  p = pc.add_slice("star_density", 2)
  pc.set_width(10, 'kpc')
  p.modify["grids"]()

  Density comes out fine and the grids are drawn in but then only a
  few of them get stars.

  Elizabeth


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